CVE-2026-98834

Status: ReceivedUnscored—

Severity—Unscored

Exploitation probability0.15 %higher than 4% of CVEs

Active exploitationNonot in the CISA catalog

Public exploitNot knownno public code found

In the Linux kernel, the following vulnerability has been resolved:

mtd: core: avoid double-free of OTP NVMEM device

If factory OTP setup fails after the user OTP NVMEM device has been registered, mtd_otp_nvmem_add() unregisters the user device but leaves mtd->otp_user_nvmem set. On an error, the caller unregisters it again. For -EOPNOTSUPP, registration continues and normal teardown unregisters it again.

Clear mtd->otp_user_nvmem after unregistering it.

CVSS

NVD hasn't assigned a CVSS score to this CVE (common since the April 2026 policy change).

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 0.15 %
Percentile among all scored CVEs: 4
Score date: 10/20/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

Linux — Linux Kernel^AI

References

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Raw JSON (NVD)

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{
  "id": "CVE-2026-98834",
  "cveTags": [],
  "metrics": {},
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "e0489f6e221f5ddee6cb3bd51b992b790c5fa4b9",
              "lessThan": "cecf007418b93a2cbc94269e07fe2fb28f54d8fb",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "e0489f6e221f5ddee6cb3bd51b992b790c5fa4b9",
              "lessThan": "26300879cd8e4612dce66bb8f6ff7cd35fcf3e59",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "6d1af517817a760d7af3dee0fc4603645485495c",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "f1b4affca1e13706ca2eb075bf6775421236d7d1",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "949476b8601bde5459048eebdf457c9db20addd8",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "dd6c85f98ff33b009b819090268cbf679dc208b9",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "5.15.111",
              "lessThan": "5.16",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "6.1.28",
              "lessThan": "6.2",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "6.2.15",
              "lessThan": "6.3",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "6.3.2",
              "lessThan": "6.4",
              "versionType": "semver"
            }
          ],
          "programFiles": [
            "drivers/mtd/mtdcore.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.4"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.4",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "7.2.10",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/mtd/mtdcore.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-10-18T16:17:37.633",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/26300879cd8e4612dce66bb8f6ff7cd35fcf3e59",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/cecf007418b93a2cbc94269e07fe2fb28f54d8fb",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: core: avoid double-free of OTP NVMEM device\n\nIf factory OTP setup fails after the user OTP NVMEM device has been\nregistered, mtd_otp_nvmem_add() unregisters the user device but leaves\nmtd->otp_user_nvmem set. On an error, the caller unregisters it again.\nFor -EOPNOTSUPP, registration continues and normal teardown unregisters\nit again.\n\nClear mtd->otp_user_nvmem after unregistering it."
    }
  ],
  "lastModified": "2026-10-19T10:19:47.420",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}